2000 Expedition XLT 5.4

[Exia]

It has 190k and it has a shudder between 45 and 55 mph, but only when it hits 1400rpm if I get it up to 2000rpm it goes away or if I release the pedal it goes away. It does have 3 codes, DPFE Sensor, Misfire Bank 2 ( Heated Oxygen Sensor ) and Misfire Cylinder 2.

Could these be the problem?

 

[Exia]

Ok.... Since I didn't get a answer on that issue, I have a new DPFE on order, the original has completely collapsed. Can I bypass that sensor in the mean time?

 

[Expy_97]

Ok.... Since I didn't get a answer on that issue, I have a new DPFE on order, the original has completely collapsed. Can I bypass that sensor in the mean time?

The DPFE sensor is not likely to cause the misfire. The DPFE sensor measures the flow rate in your EGR tube. When you replace the DPFE, make sure you check the rubber hoses and the metal tubes on the EGR tube to make sure they are not clogged as well.

As for the Misfire, Have you done a tune up lately?

Go Big Blue!!!

 

[Exia]

I have replaced the plugs with Bosh +4s and now its still missing and causes a shudder going up a hill giving more gas and the shudder goes away.

 

[Maverick1701]

lazy ujoint?